Physics

Question 1

Formula for Length of Harmonics on string with both ends fixed.

Answer 1

L = nλ/2

Question 2

Formula for Length of Harmonics on string with one end free.

Answer 2

L = nλ/4

Question 3

Formula for sound in a pipe with open pipe.

Answer 3

L = nλ/2

Question 4

Formula for sound in a pipe with closed pipe.

Answer 4

L = nλ/4

Question 5

First 3 harmonics for sound in an open pipe

Answer 5

1, 2, 3

Question 6

First 3 harmonics for sound in a closed pipe

Answer 6

1, 3, 5

Question 7

First 3 harmonics for a string with both ends fixed

Answer 7

1, 2, 3

Question 8

First 3 harmonics for a string with one end free

Answer 8

1, 3, 5

Question 9

Doppler’s Effect Formula

Answer 9

f’ = f((v_wave+v_observer)/(v_wave-v_source))

Question 10

Snell’s law

Answer 10

v_i/v_r = sinθ_i/sinθ_r = n_r/n_1

Question 11

Characteristics of Image formed in convex mirror

Answer 11

Virtual
Upright
Diminished

Question 12

Concave mirror Characteristics when object is farther away from the centre of curvature

Answer 12

Real
Diminished
Inverted

Question 13

Concave mirror Characteristics when the object is between the focus and the centre of curvature

Answer 13

Real
Enlarged
Inverted

Question 14

Concave mirror Characteristics when the object is within the focus

Answer 14

Virtual
Enlarged
Upright

Question 15

Refractive index formula

Answer 15

n=c/v

Question 16

Critical angle formula

Answer 16

sinθ_i = n_r/n_i

Question 17

Concave Lens Image produced characteristics

Answer 17

Virtual
Diminished
Upright

Question 18

Convex lens Characteristics when object is outside the centre of curvature

Answer 18

Real
Inverted
Diminished

Question 19

Convex lens characteristics when the object is between the focus and the centre of curvature

Answer 19

Real
Inverted
Enlarged

Question 20

Convex lens characteristics when the object is inside the focus

Answer 20

Virtual
Upright
Enlarged

Question 21

Magnification Formula

Answer 21

Magnification = Image Height/Object Height

Question 22

How to convert Celsius to Kelvin

Answer 22

Add 273.15

Question 23

How to convert Kelvin to Celsius

Answer 23

Subtract 273.15

Question 24

1st Law of Thermodynamics

Answer 24

ΔU = Q-W

Question 25

Change in heat formula with specific heat capacity given

Answer 25

ΔQ = mcΔT

Question 26

Heat transferred formula

Answer 26

Q/t = kAΔT/d

Question 27

Latent Heat formula

Answer 27

Q = mL

Question 28

Electric Field Strength Formula given Force and Charge Size

Answer 28

E = F/Q

Question 29

Electric Field Strength Formula given Potential Difference and distance

Answer 29

E=-V/d

Question 30

Coulumbs law

Answer 30

q1q2/(4πεr^2)

Question 31

Work on particle formula

Answer 31

W = VQ

Question 32

Current formula given charge

Answer 32

I = ΔQ/Δt

Question 33

Current in Series Circuit:

Answer 33

I_T = I_1 = I_2 = I_3

Question 34

Potential Difference in Series Circuit:

Answer 34

V_T = V_1 + V_2 + V_3

Question 35

Current in Parallel Circuit:

Answer 35

I_1 + I_2 + I_3

Question 36

Potential Difference in Parallel Circuit:

Answer 36

V_T = V_1 = V_2 = V_3

Question 37

Resistance in Series Circuit

Answer 37

R_T = R_1 + R_2 + R_3

Question 38

Resistance in Parallel Circuit

Answer 38

1/R_T = 1/R_1 + 1/R_2 + 1/R_3

Question 39

Power formula of circuit given work

Answer 39

P = W/t

Question 40

Power formula given Potential Difference

Answer 40

P = VI

Question 41

Work formula given potential difference and current

Answer 41

W = VIt

Question 42

Power formula given Current and Resistance

Answer 42

P = I^2R

Question 43

Power formula given Potential Difference and Resistance

Answer 43

P = V^2/R

Question 44

Magnetic Field strength at a point r metres from the wire

Answer 44

B = μI/(2rπ)

Question 45

Magnetic field strength at a point inside the solenoid

Answer 45

B = μIN/L